Question

20 tennis balls cost 8.20 find the cost of five

Answer 1

To do this, we must find the unit rate. 20 / 8.20 = $2.44

Now, we multiply that by 5, and that gives us $12.20

5 balls cost $12.20

Answer 2

Here is your answer:

If 20 tennis balls cost 8:20$ then divide 20 by 8.20:

First set up the equation:

20.00÷8.20=

Now solve:

20.00÷8.20=2.433902439

Or 2.43

Your answer is 2.43$ for five balls!

Hope this helps!

Have a great day!